Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 175 insertions, 0 deletions

diff --git a/widget/windows/nsNativeThemeWin.h b/widget/windows/nsNativeThemeWin.h
new file mode 100644
index 0000000000..f56e5f9bc7
--- /dev/null
+++ b/widget/windows/nsNativeThemeWin.h
@@ -0,0 +1,175 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsNativeThemeWin_h
+#define nsNativeThemeWin_h
+
+#include <windows.h>
+
+#include "mozilla/Maybe.h"
+#include "mozilla/TimeStamp.h"
+#include "Theme.h"
+#include "nsUXThemeConstants.h"
+#include "nsUXThemeData.h"
+
+namespace mozilla::widget {
+
+class nsNativeThemeWin : public Theme {
+ protected:
+  virtual ~nsNativeThemeWin();
+
+ public:
+  // Whether we draw a non-native widget.
+  //
+  // We always draw scrollbars as non-native so that all of Firefox has
+  // consistent scrollbar styles both in chrome and content (plus, the
+  // non-native scrollbars support scrollbar-width, auto-darkening...).
+  //
+  // We draw other widgets as non-native when their color-scheme is dark.  In
+  // that case (`BecauseColorMismatch`) we don't call into the non-native theme
+  // for sizing information (GetWidgetPadding/Border and GetMinimumWidgetSize),
+  // to avoid subtle sizing changes. The non-native theme can basically draw at
+  // any size, so we prefer to have consistent sizing information.
+  enum class NonNative { No, Always, BecauseColorMismatch };
+  NonNative IsWidgetNonNative(nsIFrame*, StyleAppearance);
+
+  // The nsITheme interface.
+  NS_IMETHOD DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
+                                  StyleAppearance aAppearance,
+                                  const nsRect& aRect, const nsRect& aDirtyRect,
+                                  DrawOverflow) override;
+
+  bool CreateWebRenderCommandsForWidget(wr::DisplayListBuilder&,
+                                        wr::IpcResourceUpdateQueue&,
+                                        const layers::StackingContextHelper&,
+                                        layers::RenderRootStateManager*,
+                                        nsIFrame*, StyleAppearance,
+                                        const nsRect&) override;
+
+  [[nodiscard]] LayoutDeviceIntMargin GetWidgetBorder(
+      nsDeviceContext* aContext, nsIFrame* aFrame,
+      StyleAppearance aAppearance) override;
+
+  bool GetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame,
+                        StyleAppearance aAppearance,
+                        LayoutDeviceIntMargin* aResult) override;
+
+  virtual bool GetWidgetOverflow(nsDeviceContext* aContext, nsIFrame* aFrame,
+                                 StyleAppearance aAppearance,
+                                 nsRect* aOverflowRect) override;
+
+  LayoutDeviceIntSize GetMinimumWidgetSize(
+      nsPresContext* aPresContext, nsIFrame* aFrame,
+      StyleAppearance aAppearance) override;
+
+  virtual Transparency GetWidgetTransparency(
+      nsIFrame* aFrame, StyleAppearance aAppearance) override;
+
+  NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, StyleAppearance aAppearance,
+                                nsAtom* aAttribute, bool* aShouldRepaint,
+                                const nsAttrValue* aOldValue) override;
+
+  NS_IMETHOD ThemeChanged() override;
+
+  bool ThemeSupportsWidget(nsPresContext* aPresContext, nsIFrame* aFrame,
+                           StyleAppearance aAppearance) override;
+
+  bool WidgetIsContainer(StyleAppearance aAppearance) override;
+
+  bool ThemeDrawsFocusForWidget(nsIFrame*, StyleAppearance) override;
+
+  bool ThemeWantsButtonInnerFocusRing(nsIFrame*, StyleAppearance) override {
+    return true;
+  }
+
+  bool ThemeNeedsComboboxDropmarker() override;
+
+  bool WidgetAppearanceDependsOnWindowFocus(StyleAppearance) override;
+
+  enum { eThemeGeometryTypeWindowButtons = eThemeGeometryTypeUnknown + 1 };
+  ThemeGeometryType ThemeGeometryTypeForWidget(nsIFrame*,
+                                               StyleAppearance) override;
+
+  nsNativeThemeWin();
+
+ protected:
+  Maybe<nsUXThemeClass> GetThemeClass(StyleAppearance aAppearance);
+  HANDLE GetTheme(StyleAppearance aAppearance);
+  nsresult GetThemePartAndState(nsIFrame* aFrame, StyleAppearance aAppearance,
+                                int32_t& aPart, int32_t& aState);
+  nsresult ClassicGetThemePartAndState(nsIFrame* aFrame,
+                                       StyleAppearance aAppearance,
+                                       int32_t& aPart, int32_t& aState,
+                                       bool& aFocused);
+  nsresult ClassicDrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
+                                       StyleAppearance aAppearance,
+                                       const nsRect& aRect,
+                                       const nsRect& aClipRect);
+  [[nodiscard]] LayoutDeviceIntMargin ClassicGetWidgetBorder(
+      nsDeviceContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance);
+  bool ClassicGetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame,
+                               StyleAppearance aAppearance,
+                               LayoutDeviceIntMargin* aResult);
+  LayoutDeviceIntSize ClassicGetMinimumWidgetSize(nsIFrame* aFrame,
+                                                  StyleAppearance aAppearance);
+  bool ClassicThemeSupportsWidget(nsIFrame* aFrame,
+                                  StyleAppearance aAppearance);
+  void DrawCheckedRect(HDC hdc, const RECT& rc, int32_t fore, int32_t back,
+                       HBRUSH defaultBack);
+  uint32_t GetWidgetNativeDrawingFlags(StyleAppearance aAppearance);
+  int32_t StandardGetState(nsIFrame* aFrame, StyleAppearance aAppearance,
+                           bool wantFocused);
+  bool IsMenuActive(nsIFrame* aFrame, StyleAppearance aAppearance);
+  RECT CalculateProgressOverlayRect(nsIFrame* aFrame, RECT* aWidgetRect,
+                                    bool aIsVertical, bool aIsIndeterminate,
+                                    bool aIsClassic);
+  void DrawThemedProgressMeter(nsIFrame* aFrame, StyleAppearance aAppearance,
+                               HANDLE aTheme, HDC aHdc, int aPart, int aState,
+                               RECT* aWidgetRect, RECT* aClipRect);
+
+  [[nodiscard]] LayoutDeviceIntMargin GetCachedWidgetBorder(
+      HANDLE aTheme, nsUXThemeClass aThemeClass, StyleAppearance aAppearance,
+      int32_t aPart, int32_t aState);
+
+  nsresult GetCachedMinimumWidgetSize(nsIFrame* aFrame, HANDLE aTheme,
+                                      nsUXThemeClass aThemeClass,
+                                      StyleAppearance aAppearance,
+                                      int32_t aPart, int32_t aState,
+                                      THEMESIZE aSizeReq,
+                                      LayoutDeviceIntSize* aResult);
+
+  SIZE GetCachedGutterSize(HANDLE theme);
+
+ private:
+  TimeStamp mProgressDeterminateTimeStamp;
+  TimeStamp mProgressIndeterminateTimeStamp;
+
+  // eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT is about 800 at the time of
+  // writing this, and nsIntMargin is 16 bytes wide, which makes this cache (1/8
+  // + 16) * 800 bytes, or about ~12KB. We could probably reduce this cache to
+  // 3KB by caching on the aAppearance value instead, but there would be some
+  // uncacheable values, since we derive some theme parts from other arguments.
+  uint8_t
+      mBorderCacheValid[(eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT + 7) /
+                        8];
+  LayoutDeviceIntMargin
+      mBorderCache[eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT];
+
+  // See the above not for mBorderCache and friends. However
+  // LayoutDeviceIntSize is half the size of nsIntMargin, making the
+  // cache roughly half as large. In total the caches should come to about 18KB.
+  uint8_t mMinimumWidgetSizeCacheValid
+      [(eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT + 7) / 8];
+  LayoutDeviceIntSize
+      mMinimumWidgetSizeCache[eUXNumClasses * THEME_PART_DISTINCT_VALUE_COUNT];
+
+  bool mGutterSizeCacheValid;
+  SIZE mGutterSizeCache;
+};
+
+}  // namespace mozilla::widget
+
+#endif